Headset game music wireless bluetooth headset

Bluetooth version: V4.0Frequency response range: 2.40GHz-2.48GHzTransmit power: ≤ 4 dBm, class 2Working range: 10MReceive sensitivity -84dBm / 0.1% BERCall speed: 3M bps (asynchronous)433.0 Kbps (synchronous)Frequency response: 20 Hz - 20 KHzSignal to noise ratio 70 dBDistortion rate (THD) 0.10%Speaker 40mm Magnetic moving coilBluetooth mode support A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5Operating voltage 3.7VDC (built-in A-class 400mAh rechargeable lithium battery)Talk time 10 hoursStandby time 250 hoursCharging time 2-2.5 hoursWorking current 40 mAShutdown current 2 ~ 10 μAOperating temperature -4 ~ +131°F (-20 ~ +55°C)1. Voice control, volume +/-, up/down song switching, answering calls2. Play/pause, support 3.5mm audio interface, 3.5 plug audio cable directly connected to the headset to enjoy high-quality music playback without good power, good noise reduction function, all functions are available.3. Bluetooth card settings, enjoy wireless high quality music even if you don't have Blueto